* {
    margin:0;
    padding: 0;
}
body {
    min-width:992px;
    height:100%;
    color:#333;
    font-size:20px;
}
html {
    overflow-x:hidden;
}
.container-head {
    display:flex;
}
.main-left {
    width:220px;
    backgrount-color:#f0f0f0;
}
.main-right {
    flex:1;
}